Color picture tube having residue electron removing assembly

Details Color picture tube having residue electron removing assembly Color picture tube having residue electron removing assembly

1991-08-15

1993-06-08

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313404, H01J 2907

Patent

active

052182665

ABSTRACT:
A color picture tube is provided with a residue electron removing assembly. The residue electron removing assembly includes a contact spring which is installed between a stud pin and a hook spring connected to a frame. Opposite ends of the contact spring resiliently contact an aluminum layer of a panel and a graphite layer of a funnel, respectively. Assembly supporting pieces and embossing portions on the contact spring grasp the hook spring to support it. With this structure, residue electrons which collide with a shadow mask are discharged through the frame and the hook spring, while residue electrons which collide with a phosphor layer after passing through the shadow mask are discharged through the aluminum layer to the contact spring to the graphite layer and eventually to the outside of the picture tube.

REFERENCES:
patent: 4739215 (1988-04-01), Adamski et al.
patent: 4829212 (1989-05-01), Serio et al.

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